摘要
以燃煤电厂固体废物-煤渣作为原料,一步水热法合成了NaP型沸石。采用响应面法中的Box-Behnken Design优化实验设计,分别考察了水热反应时间、碱溶液浓度和反应温度3个因素对合成沸石的影响,建立了响应值与影响因素间的回归方程,探究各因素的交互影响并确定了最优条件。结果表明,在选取的3个因素当中,对合成沸石的影响显著因素顺序为反应温度>反应时间>碱溶液浓度。采用XRD、SEM等分析方法对在反应温度130℃,碱溶液浓度1.5 mol/L、不同时间条件下合成的沸石进行了表征。结果表明合成的NaP型沸石具有多孔结构及较大的比表面积,可用于催化剂载体、吸附等领域。
In this paper,NaP type zeolite was synthesized by hydrothermal method with solid waste-cinder of coal-fired power plant as raw material.Using the Box-Behnken Design optimization experimental design,the influence of hydrothermal reaction time,alkali solution concentration and reaction temperature on the synthetic zeolites was investigated.The regression equation between response value and influencing factors was established.The interaction influence of various factors was explored and the optimal conditions were determined.The results showed that the order of significant influence on synthetic zeolite was as following:reaction temperature>reaction time>alkali solution concentration.Zeolites synthesized at 130℃,C_(NaOH)=1.5 mol/L and different reaction times were characterized by XRD,SEM and BET.It was found that the synthesized NaP zeolite had porous structure and large specific surface area,which can be used as catalyst supporter and adsorption fields.
作者
滕柳梅
张强
吴杰
马健坤
卜亦凡
TENG Liumei;ZHANG Qiang;WU Jie;MA Jiankun;BU Yifan(School of Materials Science and Engineering,Chongqing University of Arts and Sciences,Chongqing 402160,China;LB Sichuan Titanium Industry Co.,Ltd.,Deyang 618209,China;Chongqing Academy of Metrology and Quality Inspection,Chongqing 401120,China)
出处
《功能材料》
CAS
CSCD
北大核心
2022年第8期8214-8220,共7页
Journal of Functional Materials
基金
重庆文理学院塔尖项目(P2019CL12)。
关键词
煤渣
响应面法
沸石
水热反应
制备工艺
coal cinder
response surface method
zeolite
hydrothermal reaction
synthesis
